Method of cementing the margins of flexible material.



w. F. LAUTENSCHLAGER.

METHOD 0I: CEMENTING THE MRGINS (II-.FLEXIBLE MATERIAL.

APPLICATION FILED AUGI9| I9I5. l v 1,223,404. Patented Apr. 24,1917.

4 SHEETS-SHEET M1 wwww' ffii/a@ W. F. LAUTENSCHLAGER. METHOD oT CEMENTING THE MARGINS oF FLEXIBLE MATERIAL,

' APPLICATION FILED AuG.I9, Isls.

Patented Apr. 24, 1917.

4 SHEETS-SHEET 2.

il 'fw MIKE/f' W/ W. F. -LAUTENSCHLAGER.

METHOD 0E CEMENTING THE MARGTNS 0F FLEXIBLE MATERIAL.

Patented Apr. 24,1917.

4 SHEETS-SHEET 3 APPLICATION FILED AUG.,19,1`9I5.

1,223,404. 'n I ZT? .70.

I fyz 32 W. F. LAUTENSCHLAGER.

METHOD 0F GEMENTING THE MARGINS 0F FLEXIBLE 'MATERIAL APPLICATION man Auc..19.1915.

1,223,404. Patented Apr. 24, 1917.

4 SHEETS-SHEET 4.

tyfzd as@ 7)/ fm1/4117011' f me Noam; Urns co.. wam-1.11m:4 wAsmNomn. u cA WILLIAM F. LAUTENSCHLAGERROF CINCINNATI, foii'ioff.

iiiii'irioi)k 0F CMENTING THE' MAReINs OFFLEXIBILE MATERIAL.

' Specification of Letters Patent. Plijenjed D'Z, 1917.A y i Application led August 19, 191'5.'r i Serial 'No' 46,*269` '1' To all/whom t may concern Be it known thatI-VILLIAM siding at Cincinnati, in the county of ame ilton andState of Ohio, have invented certain new and useful Improvements in Meth-f ods of Cementing the Margins of Flexible#- Material, of which the following is a specification;

The object of luy-invention is a new and improved methodfor` cementing the margin of flexible material, such for instance asis used in the manufacture of shoe-uppers and other flexible leather, cloth and fabric parts,

in the manufacture ofshoes, gloves, pocket'-y books and containers vof various kinds, in'

cludingso-called closed vamps of shoes. f

My new and yimproved method is herein exemplified as yaccomplished bymachinery, but the same may be accomplished 'byinanual means if desired.

The invention consists in the method of moving the margin of the flexible material gin being presented to the cement-applying part; and` further in the method ofso relatively moving the margin and 'cement-ape plying part mentioned thatv the cement ap-y plication is accomplished inlines upon, the surface of the margin whichare the resultant of the path of movement of the cement'- applying part and thev cross-linefpath of movement. of the margin4 ofthe flexible material.r f l 1 My invention .consists further in the flexible material which consists in moving a brush,.lexemplified as a rotating brush,

crosswise of and pasty the outer ,edge of the margin which is moving crosswise of the brush, whereby cement strings which may alsoV take they form of a ycement film, extend from themarginin adjacency .to its outer edge,.and laying .overthese' cement strings across the extreme outer edgelof the margin, whereby'cement application at said extreme outer edge, is insured. y

My invention consistsv further.y in the method of applyingV cement to lthe'inarginfh of flexible materialvby applying ,cement to the margin with, movement crosswise vv.0f

F. LAnTiiiRi-- soriLAeniz, a citizen of the United States rether in so laying the cement thatthe ridges emplifie'd in my applications for vpatents on this applicationf lplier and llaying the "cement-Kupon vthemarginQinfridges: which extend lin directions which arefthe resultant ,of thetwo move-9 ments of thek cenient-ap'plier crosswise'of ythe margin and of the movement of lthe inargin crosswfi-seryof the cement-appliervg andr fur#v are regularly recurrent ridges formed by: alf ternately recurringy cement ridges and idepressions, so-that, when the margin isfolded the ridges will be arranged crossinglyface to face for insuring good adhesion.y

My .invention consists rfurther in the method of applying cement to the closed margin yof a flexible lclosed vamp` whereby:

the ceinentation-is -begunat a given :pointy in` the closed margi'nfby a movementcof the cementeapplier crosswisefof the margin and 'f v the'movement ofl themargin ofthe vamp'y lengthwise of fthe 'marginf :and v"crosswise" of theA cementapplier ythroughout the 'length' of the closedfmargin and meeting or lapping the point ofbegiiining oflcement"applica-V tion -f to the margin;l further in continuously. moving-.the 4cement-applier past the outerl edgeoofthel margin and 'causing .cement-Q strings to -pass n:said edge and -to sever said' strings in manner to cause the same toar range themselves? alongV said outer edge.I

In employing mymethod,further,the closedk margin of the closed vamp is moved through-L out a closed pa tli corresponding tothe closed ridges, 'so that said oblique ridges will meet i, andy be obliquely arranged -at the point of 95: I fbeginning and ending of cement application. with its point of cement application moving s to said closed margin of said closed ivainp. lnstrumentalities which may be employed in performing myimproved process are exiinprovenients in cement applying'machines,-AV i Serial No. 829,898, filed April 6,1914, issued n as `Patent -No. 1,154,419, dated 'September' 21,1915; Serial No.f'39,802, lfiled July-14, 1915; and Serial No. 46,268,5filed August .'19, 'i915i Theyarious steps-in==the method'ff cement application arefshow-n and describedv z I. inl said. applications, "but not yclaimed therein,the claims on the :method-being part offA aow-` kmargin 4past the cement--applier in such 'manner that'f a narrowband of-cement`-is japplied to theV closed vmargiii =in oblique f methodof :applying cement tothe margin of f The margins to be cemented are narrow margins at the edge of the material. When the material is leather these margins are sometimes skived. The margins in the course of manufacture of the article are usually folded and when it is the intention to fold the margin the band of cement is usually approximately twice the width of the fold, so that both the surfaces within the fold shall be cemented prior to the folding, for the reason that the cement employed in this art for the purpose specified has volatile ingredients and adheres best to the surface of the material at its moment of application thereto, the outer surface of the band of cement retaining its tackiness for a period of time after its application to the material, these outer surfaces being placed one uponthe other when the fold of the margin is folded upon the body of the margin.

My invention consists further in the method of applying cement to the margin of flexible material in recurrent oblique ridges and progressively folding the margin so cemented with step-by-step or progressive folding movements and arranging the ridges at the sides of the crease of the fold in crossing relation in contact with each other.

The cement usually used in general work of this character has a rubber foundation and is known in the trade as rubber cement, and this cement used in cementing certain characters of material, for instance, oiled leather or glazed material, further contains an oil-absorbing ingredient, such as chalk or other earthy substance, forming a thicker cement, known in the trade as white or pink cement, which for convenience will hereinafter be termed thick cement.

A suitable mechanism which may be employed in performinfr my improved method, if it is desired to perform the same by mechanism, is exemplified in theaccompanying drawings, in which:

Figure 1 is a front elevation of a cementapplying machine, partly broken away, showing the cement being applied to the closed margin of a closed vamp, by my improved method.

Fig. 2 is a vertical section of the cementapplying head of the exemplified device, taken on the line of Fig. 3.

Fig. 3 is an end elevation of the device, partly broken away.

Fig. 4 is a cross-section of the cement-applying head taken on the line 4 4 of Fig. 1.

Fig. 5 is a cross-section of the same taken on the line 5 5 of Fig. 1.

Fig. 6 is a cross-section of the same taken on the line 6 6 of Fig. 1.

Fi 7 is a sectional detail taken on the line 7 of Fig. 3, showing the adjusting means for the material support.

Fig. 13 is a perspective view of the same viewed away from the operator and from the feeding-in side.

Fig. 14 is a perspective view of the same viewed toward the operator and from the feeding-in side.

Fig. 15 is a plan view of the exemplified device, the cement-pot being broken away on the section line 15--15 of Fig. 3.

Fig. 1G is a plan view of a closed vamp laid flat, the closed margin of which is provided with a continuous narrow band of cement by my improved method.

Fig. 17 is an enlarged plan view of a section of a piece of material, represented as a part of the c-losed vamp, having its margin cemented by my4 improved method and partly folded, and illustrating the cross relation of the cement-ridges within the fold.

Fig. 18 is a longitudinal section of the same, taken on the line 18 18 of Fig. 17, showing the cement ridges.

Fig. 19 is cross-section of the same, taken on the line -19 19 of Fig. 17.

Fig. 2O is a side elevation, showing the cement application upon the margin of a piece of material, the material being cut away proximate to the plane of the feedingout side' of the eement-applier; and,

Fig. 21 is a rear elevation of the same.

In the present exemplification, the feeding of the material is accomplished by hand, but,

if desired, a power feed may be employed as illustrated, for instance, in my application Serial No. 829,898, filed April 6, 1914, aforesaid.

In my improved method the cement is arranged to be applied to the margin of the flexible material ay a suitable cement-applier, exemplified as a rotary cement-applying brush 21, arranged to be rotated in suitable manner. The flexible material is exemplified at m in Figs. 12, 13 and 111, as having a margin which is partly convexly curved and partly straight, and at lv in Figs. 1G to- 21 inclusive as a closed vamp. The flexible material is arranged to have its margin 22 provided with a band of cement 23, the margin, in the present exemplification, being manually fed crosswise of the cement-applier.

machine shown in the present .exemplifica-c tion.

The frame `of themachine lis shown-as,

comprising a column 24'extendingupwardly from a base 25 arranged to be suitably see cured to a suitable supportfzor table- 26.

The cement-applying instrumentalities are mounted on a laterally. and forwardly extending arm kand distancedV sufficiently from the column and above thesupport or table to permit the margins of flexible ma-f terial of various sizes andk shapes, and including closed vamps, to befed pastl the cement-applying instrumentalities while stretched or held between the hands oftheoperator, without'interference or contact by said pieces of material or the hands-of the. operator with the frame of the machine or` its table or support. l

AThe arm is shown extending laterally and forwardly from Athe column by means ofa laterally extending portion 27 and forwardly extending portions 28 and 29.

A cement-pot 30 is suitablyv secured in the forward extension 28 and communica-tes by 36 .iouinaled in bearings 37 in the head and has a gear 38 fast thereon.l It is provided with cement-supplying pockets, 39 *for con-M veying the cement to the cement-applying brush, which is exemplified as comprising annular rows of bristles 41 on a bushing 42,

the rows of bristles being separated by flat rings 43, for applying alternately heavier andy lighter lines of pressure upon they margin. A Harige 44y -is at one end of the brush.k The brush is fixed by meansof a set-screw 45 to a sleeve 46.which is received about a shaft 47 and held to the shaft so as to rotate therewith by being provided with an end slot 48 received about a pin 49 in the shaft. y

Rotation is imparted to the rotary cementapplying brush bymeans of a drive-shaft 54 journaled in a bearing 55 on the upper end of the column and abearing 56 on the outer end of the arm, and provided with ak suitable driving means, preferably of such character as to cause rotation and permit `cessation of rotation of-the rotary cement-applying brush under manual control. of the operator during operation of the machine, if this should be desired. *The term'fmanual control includes any control by the operator, during theoperation `of the machine,4

whether byzhand, foot, knee,-or other human control.

I have exemplified these driving means as comprisingy a pulley 57 arranged for receivshaft. friction clutch between the pulley and they the clutch-member 61.

There is a clutch represented as a drive-shaft and arranged, when in clutched relation7 to impart motion from the pulley to the drive-shaft, the drive-shaft being non-v ,rotatingv during unclutched relation of the clutch# The clutch may be of suitable constructionl and is exemplified as comprising a ,member 61 fast on the drive-shaft and a member 62 fast on the pulley 57, a frictionband 63 being between said members. A spring 64 normally causes separation of the members 61, 62.

A lever 65 is pivoted upon a bolt 66 on the column and comprises an actuator arm 67, a brake-arm 68, and an operating arm 69.r The` actuator arm contacts a button of the clutch-member 62` for pushing the clutch-members into clutching relation. The brake-arm has a brake-shoe 71 thereon coacting with an annular brake surface 72 on The operating arm connects by a connection 7 3 with a treadle 74 suitably placed on the floor. The lever 65 is normally retracted by a spring 75 connected at one end with the column and at its other end with the operating arm.

l/Vhen the treadle is depressed by the operator the brake is released and the clutch brought into clutching relation for actuating` the drive-shaft and rotating the rotary cement-applying part, and when the treadle is released the clutch is released and the brake-applied for causing instant cessation of rotation of the-rotary cement-applying part and consequently of cement application, so that rotation of the rotary cementsupplying roller and brush may, under the control of the operator, take place only durn ing` the vfeeding' of the material.

The drive-shaft is provided with a gear 76 fast thereon which meshes with an intermediate gear 77 fast on a shaft 78 journaled in a bearing 7 9 in the forwardly extending portion 29 of the arm of the frame. The geai177 meshes with a gear 81 on the brushshaft 47 journaled in a bearing 82 in said forwardly extending portion 29 of the arm.

- The shaft 7 8y is also provided with a gear 83 4fast kthereon which meshes with the gear 38 fast on the shaft 36 to which the cementsupplying vrolleiis secured for rotating the latter, preferably in the direction of the arrow a., the rotary ceinent-applying brush being preferably rotated in the direction of the arrow A cement-wiping finger 85 is arrangedv to Contact the side of the flange 44 so as to wipe the cement which may be received on said flange, on tothe bristles of the brush for keeping the liangeclean.T

The cement is applied to the margin vof the material in the forniof the narrow band 23. It is desirable that the margin of the material, duringhe-application of said narrow band of cement, be supported and guided, for accomplishing which 1 exemplify the forwardly extending support 91 located at the side, namely the normal feeding-in side, of the rotary cement-applying brush. rlhis support, which is in the form of a horn, has a gage 92 thereon arranged to be adjusted forward and back on the support for increasing or decreasing the width of the margin presented to the rotary cement-applying part during cement application, and to be clamped in adjusted positions, as by means of a clamp-screw 93 received tl rough a slot 9a in the support and threaded inte the gage.

The material supporting face of the material support or iorn preferably extends into the longitudinal projection of the periphery of the rotary cement-'applying brush, (see Figs. 1, 2, 3, land 6), the said supporting face being preferably a curved face preferably slightly approaching the axis of rotation of the brush at its portion removed from the operator.

.ln order to acconnnodate different thicknesses of leather having different widths of margins to be cemented and insuring that, especially when the margin is skived, as shown at 95, the thin outer edge thereof has support, the support is arranged to be raised and lewe 1ed and held in adjusted positions, as by means of clamp-screws 97 received through a slot 98 in the shank 99 ofthe support and threaded in threaded apertures of the arm.

The gage is provided with an upwardly curving finger 101, forming a recess 102 having a wide mouth in which the margin of the material is readily received, the said recess preferably contracting toward the gage, against which the outer edge 103 of the margin 22 of the flexible material is arranged to be received when feeding the material past the gage and the rotary cement-applying part. The clearance in the recess is preferably sufficiently high to permit the ready passage of seams therethrough.

1n performing my improved method under employment of the exemplified machine, the operator is seated in front of the cement-applying head of the machine, as viewed in Fig. 1, that is, facing the front of the machine marked j in Fig. 3. The normal direction of feeding the material is indicated by the arrow c in Figs. 12, 13, 14rand 21, the side CZ of the rotary cement-applying part being therefore the normal feeding-in side and the side e of said part being the normal feeding-out side thereof.

The gage with its support is located at the feeding-in side of the rotary cement-applying brush and its edge proximate thereto is preferably spaced from the bristles of the brush by a slight space 105, for permitting the material to be flexed, as shown at 10G, about the periphery of the brush, without undue flexure of the bristles of the brush, and for insuring intimate Contact between the margin being cemented and the periphery of the brush. rlhis space also permits the ready passage of cross-seams 110 when such are contained in the margin, instanced as the seams of a closed vamp e.

1n feeding the material manually, it is held by one hand of the operator at the feeding-in side of the rotary cement-applying part, as indicated at 111, and by the other hand of the operator at the feedingout side of said rotary cement-applying part, as indicated at 112, the margin being supported on thehorn and guided by the gage and passed with a quick movement across said gage and the rotary cement-applying part.

rlhe movement of the cement-applying brush in its path crosswise of the margin vand the movement of the margin lengthwise of the margin and across the cement-applying brush has the effect of laying the cem-'suit in an oblique path or oblique lines, instanced as alternate thicker and thinner lines, forming ridges 114, arranged obliquely across the margin being cemented in a direction which is the resultant of the movement of the cement-applying brush in its path and the feeding movement of the margin, shown in Figs. 12, 13, 16, 17 and 18.

rlhe movement of the margin crosswise of the brush has a valuable result, in that it avoids the wiping of the cement previously laid on the margin by a previously margincontacting portion of the brush, a feature especially useful in applying the thick cements hereinbefore referred to, the movement of the brush and material resulting in laying the cement in alternating thicker or thinner lines or ridges, as stated.

The fold of the margin is usually formed with a crease 115 extending lengthwise of the middle of the band of cement. When the fold-portion 116 of the margin is laid upon the body portionl 117 of the margin, the lines or ridges of cement at the respective sides of the crease extend in opposite directions and cross relations, so that the uniformly recurrent thick portions of the cement applied will lap each other and cause adhesion between the folded and body portions of the margin 'when pressed together, as seen more particularly in Fig. 17.

In my improved method the folding is accomplished in step-by-step manner, if desired, for progressively folding and pressing the fold-portion 116 upon the body-portion 117, as shown in Figs. 17 and 19, this folding and pressing, in the case of a closed vamp beginning at a suitable point y), in the closed margin and continuing throughout said closed margin to the beginning point p.

menant-1 The recurrent obliqueridges ofthe foldportion 116 are thereby laid and pressed upon the recurrent oblique ridges of the str-inging mentioned.

body-portion l*117 throughout the closed margin of the closed vamp in crossing relation at the sides of the closed crease of the closed vamp. The closed-margin of the closed vamp maybe snipped ^`at its concavely curved portions, as shown at 118,' accomplished preferablyk after Vthe cementing has been' completed, in `advance of the folding, or substantially concurrently therewith, in well`` understood `=`manner tof permit the proper! layingoverofthc fold-portion at said concavely vcurved portions.

The feeding, folding-pressing and snipping of thefinargins of VflexibleV material, in-

cluding theclosedmargins of closed vamps, may beaccomplished if desired bythe mechanism shown, described and'claimed'in my application 'for patent on folding machines, Serial No. 634,485,1iled June 21,1911.

Thel degree of pressure of the margin of the material upon `the periphery of the brush is readily regulated by the vforce lapplied by the hand iii-stretching the material between the handsy at the'point `of cement application, and also by thedirection above or `below the plane of the cement-,applying portion of the brush in which the feedingout portion of the' margin is held.

Inemploying my method upon a closed vamp, cement application 'isI vbegun at given point in the margin thereof,E for kinstance, at the point indicated at p,'in Figs. 1, 16r and 17, the closed margin being moved in the direction of the arrowlc during movement of the cement-applier crosswise` :of the margin, `and theseV movements continued until the point of beginningof cement application in the margin is again reached or passed, the margin yends of the seams and stays being also cemented during these movements. Thecement is laid in a closed path, and kin recurrent oblique ridges as indicated in Figs. 1, 16 and 17, theseoblioluev ridges extending throughout the length of the margin in a closed path yof. recurrent ridges, the ridges at the beginning and ending of the cementing of the closed path meeting or lapping. v

The cross-movement of:y the brush` and lengthwise movement of the margin alsoresults in a Stringing Ofcement, as shown at 121, at the feeding-out side of the'brush, this kStringing sometimestaking the form of a thin film lof cement.

This Stringing is` especially noticeable when the cement-applier is a rotary cementapplying brush, whichl havefound best for cement-application, as the pressure' of" Athe margin uponlthe bristles-and the `feeding of the marginflengthwise of the margin and crosswise of the rotatingfabrushv causesv 'lateral fleXure of the bristles of the brush at the point ofcement-application and a tendency of the cement to follow' the feeding movement of the margin, resulting in the' The movement of the bristles of the brush in their path is preferably past the outer edge 103 of the margin, but in practice the 'pressure of vthe brush` upon the margin,

whether the brush is a manually manipulated? brush or a rotary cement-applying brush, decreases toward the edge of the margin, and impractice it has been found difficult heretoferel to lapply the cement at the extreme outer edge of the margin, whether a convexly or concavely curved or astraight margin, or the closed margin of a closed vamp, without danger of defacing the face or opposite side of the material. By pushing or wiping the-cement strings towardthe outer edge of the margin, closely adjacent to Athe point of cement application, the` strings are .cut and the cement, being naturally asomewhat resilient material having rubber as its Abase,will snap toward the eX- treme outer edge of the margin Lat'the face thereof being cemented and arrange themselves along said outer edge.

I have'found that an interrupting `lip adjacent to the brush will accomplish this `layringofthe cement-strings, such a lip "being exemplified at -122.

In the present exemplication of'mechanism for performing my method the lip l122 is shown as part of a cement-control device 126, which ris shown in the form ofi a plate received about the aXis of rotation of the brush. The plate inthe form shown is provided with an annular flange 127 at its middle portion which is received about the shaft 17, in the annular recess 128,. The plateis held on the shaft by means of a sc`rew129`` iio which has threaded connection ywith the end i is located inwardly from the longitudinal projection of the periphery of the rotary cement-applying brush, as shown at 132 so that the bristles of the brush may project beyond said edge.

The lip 122 is shown as comprising a portion 133 which extends at the side of the brush downwardly and outwardly away kfrom the brush, and a portion 134 which extends across the rear edge of the brush, and slopes inwardly, rearwardly and downwardly across the cement-strings 121.

The space between said lip and brush may form a pocket 135 in which the bristles of the brush have lateral flcxure during cement application.

The character of the cement employed, which is a tacky, gummy and adhesive substance, and the relative movement between the mar'in and the brush mentioned, has a tendency, as stated, to cause Stringing of the cement between the cuter edge of the margin and the periphery of the brush, as seen by the strings 121. These strings of cement normally extend from the margin to the periphery of the brush and would normally follow the periphery of the brush in its rotation, and draw the cement away from the outer edge of the material.

1 have found for instance where the relative movements between the margin and brush results in a recession of the outer edge of the margin away from the brush, exemplified in Figs. 12, 13 and 14:, by a movement of the convexly curved portion 136 of the margin away from the brush and toward the operator, the strings have a tendency to pull the cement away from the outer edge of the margin being cemented and thereby leave this outer edge of the margin unceniented. 1n order to prevent this undesirable condition, 1 have provided the lip 122.

The movement of the bristles of the brush at the pocket 135, causes the brush in its rotation to carry with it any excess accumulation of cement in the pocket back to the infeeding portion of the cement-supplying roller.

The lower edge of the cement control lip slopes toward' the outer edge of the margin being cemented, when in cement-applying position, and is arranged to contact the strings of cement extending from the margin, and lay them upon the outer edge 103 of the margin, and cut said strings, the cut brush-end portions of the strings following the periphery of the brush to the cementsupplying roller, and the cut portions of the cement-strings at the outer edge of the margin being laid upon said outer edge, so as to insure cement application throughout the margin at the extreme outer edge thereof, as exemplified in Figs. 12, 13,14, 2O and 21.

Having thus fully described my invention,

what claim as new and desire to secure by Letters Patent is:

1. The method of cementing the margin of Hexible material which consists in moving the margin of the flexible material lengthwise of said margin across a cement-applying part which is moved across and toward the outer edge cf the lengthwise moving margin for applying cement thereto throughout the application of cement to said margin.

2. The method of cementing the margin of flexible material which consists in moving the margin of flexible material lengthwise of said margin across a cement-applying part which is moved across and toward the outer edge of the lengthwise moving margin for applying cement thereto in paths oblique to the edge of said margin which are the resultante of said movements of said margin and said cement-applying part throughout the application of cement to said margin.

3. The method of cementing the margin of flexible material which consists in moving the margin of flexible material lengthwise of said margin across a cement-applying part which is moved crosswise of the lengthwise moving margin and applying cement thereto in oblique ridges which are the resultant of said movements of said margin and said cement-applying part.

a. The method of cementing and folding the margin of flexible material which consists in moving the margin of flexible material lengthwise of said margin across a cement-applying part which is moved crosswise of said lengthwise moving margin and applying cement thereto in oblique ridge which are the resultant of said movements of said margin and said cement-applying part, and folding said margin with a crease intermediate of its width and crossingly arranging said ridges at the sides of said crease in contact with each other.

5. rThe method of cementing the margin of flexible material which consists in moving the margin of the flexible material lengthwise of said margin across a cementapplying part which is moved crosswise of the lengthwise moving margin and past the outer edge thereof for applying cement to said margin and causing cement to extend from said outer edge, and laying said extending cement lengthwise of said louter edge.

6. The method of cementing the margin of flexible material which consists in moving the margin of flexible material lengthwise of said margin across a cement-applying part which is moved crosswise of the lengthwise moving margin and past the outer edge thereof for applying cement to said margin in oblique paths crosswise of said margin which are the resultant of said movements of said margin and said cementapplyingffpart and causing cement to extend from saidwouter edge, :and i layingsaid lastnamed cement on said outer edge. `j

7.1 The methody ofv cementing the margin of flexible material which consists in moving the margin of flexible material lengthwise of said margin across a cement-applyingpart which is moving crosswise of the lengthwise moving marginwand past theouter edgek thereof and applying alternately heavier andlighter lines ofp'ressure upon said margin for applying cement to the margin in oblique ridges which are the resultanty of said movements of said' margin and said cement applying part and causing cement-strings to extend from said'outer edge, and laying said cement-strings on said outer edge.

8. The method of cementing the margin of liexible material which consists in moving the margin of flexible material lengthwise of `said margin across a cement-applying part which is moved across and toward the' outer edge of the lengthwise moving margin and manually moving said margin into. selective elevations about said cementapplyifng-part with relation `to the cementapplying portion of said cement-applying part.

9.f Themethod of applying c-ement to the margin of exible material which consists in moving the margin lengthwise of said margin across a cement-applying part which is moved crosswisefof the lengthwise moving margin and past theouter edge thereof kfor applying cement tosaid margin and causing cement-strings to extend from said outer edge, laying said cement-strings along said outer edge, and manuallyfguiding said margin to elevation with relation to said. cement-applying part for controllings'aid laying.

10. The method of cementing the margin ofilexible material which consists in moving the margin of flexible material lengthwise yof said margin across a cement-applying part which is moved crosswise of the lengthwise moving margin for applying cement thereto, and controlling said cementapplying by manual manipulation of said margin.

11. The method of cementingthe margin of a closed vamp offlexible material which consists in moving said margin `lengthwise of said margin across a cement-applying part moving in a direction crosswise of ythe direction of movement of saidmargin across said margin and tow-ard its outer edge throughout the application of cement to said margin. v v

12. The method of applying cement to the margin of flexible material which consists in moving said margin past a cement-applying part moving ina direction crosswise of the direction of movement of said margin while in Contact with said cement-applying-part in such manner that :obliquely arranged ridges of cement vvare applied to said margin so that when the fold of` said margin is folded back upon the body of said margin the said o'bliquely arranged ridges on said fold and bodyare arranged in crossing relations and in'contact with each other.

13. The method of cementing and folding the margin of flexible material which consists in applying a narrow band of cement in oblique lines to the margin yto be folded in `adirection toward the outer edge of said margin and then folding the fold of said marginupon the body of said margin whereby said oblique lines of cement at the respective sides of said band are arranged in crossing relation in Contact with each other.

14. The method of cementing and folding vthe margin of flexible material which consists in applying a narrow band of cement of substantially twice the width of the fold of `said margin. in oblique lines to the niargin to be folded in a direction toward the outer edge of said margin, forming a crease in said margin -lengthwise thereof and at substantially its middle and folding the fold yof said margin upon the body of said mare gin whereby said oblique lines of cement at opposite sides of said crease are arranged in crossing relation in Contact with each other. 15. The method of cementing and folding the' margin of flexiblematerial which consists in applying a narrow band of cement of substantially twice the width of the fold of said marginin obliquelines to the margin to be folded in a direction toward the youter edge vofsaid. margin, forming aicrease in said margin lengthwise thereof and at substantially its middle and folding the fold of said margin upon the body of said margm whereby said oblique lines of cement at opposite sides offsaidcrease are arrangedin crossing relation in contact with each other,

then pressing said fold and body of said margin together.

16. The method of cementing the closed margin of a closed vamp of exible materialwhich consists in moving said closed margin fromy a' given point therein length- `wise of said margin across a cementapplying partwhich ispmoved across the lengthwise moving margin, toward the outer edge of said margin, for applying a bandof cement thereto which substantially meets at said given point therein. y

17. The method of cementing the 'closed margin of a closed vamp of flexible material which consists ink moving said closed margin vfrom a 'given point therein lengthwise of said closed margin across a cementapplying part which is moved crosswise of the lengthwise moving margin and past the outer edge thereof for applying a band of cement to said margin and causing cementstrings to extend from said outer edge and laying said cement-strings as formed upon said outer edge and substantially closing said band by said movements.

18. The method of cementing the closed margin of a closed vamp of flexible material which consists in moving said closed margin from a given point therein lengthwise of said margin across a cementapplying part which is moved crosswise of the lengthwise moving margin and applying cement thereto in oblique ridges which are the resultant of said movements of said closed margin and said cement-applying part and continuing said movements substantially throughout said closed margin and thereby applying a narrow band of recurrent oblique ridges of cement substantially throughout said closed margin.

19. rlhe method of cementing and folding the closed margin of a closed vamp of flexible material which consists in moving said closed margin from a given point therein lengthwise of said margin across a cementapplying part which is moved crosswise of the lengthwise moving margin and applying cement thereto in oblique ridges which are the resultant of said movements of said closed margin and said cement-applying part and continuing said movements substantially throughout said closed margin and thereby applying a narrow band of recurrent oblique ridges of cement substantially throughout said closed margin, and folding said closed margin with a crease intermediate of `its width and crossingly arranging said ridges at the sides of said crease in contactwith each other.

20. rlhe method of cementing and folding the closed margin of a closed vamp of flexible material which consists in moving said folding movements continuing progressively fromr a given point in said margin substantially throughout said closed margin with a crease extending lengthwise of said margin intermediate of the width of said margin and crossingly arranging said ridges at the sides of said crease in contact with each other.

21. The method of cementing the .closed margin of a closed vamp of flexible material which consists in moving said closed margin from a given point therein lengthwise of said margin across a cementapplying part -which is moved across the lengthwise moving margin toward the outer edge of said margin, while the depending portion of said closed vamp is hanging free of dragging contact for applying a band of cement to said closed margin which substantially meets at said given point.

In testimony whereof, I have hereunto subscribed my name in the presence of two subscribing witnesses.

WILLIAM F. LAUTENSCHLAGER.

Witnesses THERESA M. SILBER, CHARLES E. WEBER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

